Properties And Application %

Symbol

Hardness Hs

Tensile strength Mpa

Elongation %

Application

AS60A

45-55

≥700

≥8

Blooming and slabbing sills, roughing stands of large section mills

AS70B

34-44

≥680

≥7

Roughing stands of section mills, bar and rod mills, narrow strip mills, vertical scale-breaking rolls.

AS70B

36-46

≥680

≥7

AS75

36-46

≥680

≥6

AS75A

35-55

≥800

≥7

AS75B

40-60

≥800

≥7

Blooming and slabbing mills, the back-up rolls of narrow strip mills